钢坯在加热炉内以()传热方工式加热
A.对流
B.辐射
C.传导、对流和辐射
参考答案:C
The secretary arranged a(n) ______ time and space for the applicants to have an interview.[ ]
A. important
B. spare
C. public
D. convenient
洋地黄中毒因素()
A.过量应用
B.心肌缺血、缺氧
C.水电解质紊乱
D.药物相互作用
E.肾功能不全